BRITISH STANDARD BS EN 60819 2 2002 IEC 60819 2 2001 Non cellulosic papers for electrical purposes — Part 2 Methods of test The European Standard EN 60819 2 2001 has the status of a British Standard I[.]
BRITISH STANDARD Non-cellulosic papers for electrical purposes — Part 2: Methods of test The European Standard EN 60819-2:2001 has the status of a British Standard ICS 29.035.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 60819-2:2002 IEC 60819-2:2001 BS EN 60819-2:2002 National foreword This British Standard is the official English language version of EN 60819-2:2001 It is identical with IEC 60819-2:2001 The UK participation in its preparation was entrusted by Technical Committee GEL/15, Material specification, to Subcommittee GEL/15/3/10, Flexible composites and textiles, which has the responsibility to: — aid enquirers to understand the text; — present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; — monitor related international and European developments and promulgate them in the UK A list of organizations represented on this subcommittee can be obtained on request to its secretary From January 1997, all IEC publications have the number 60000 added to the old number For instance, IEC 27-1 has been renumbered as IEC 60027-1 For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application Compliance with a British Standard does not of itself confer immunity from legal obligations This British Standard, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 22 January 2002 Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages to 14, an inside back cover and a back cover The BSI copyright date displayed in this document indicates when the document was last issued Amendments issued since publication Amd No © BSI 22 January 2002 ISBN 580 38858 Date Comments EUROPEAN STANDARD EN 6081 9-2 NORME EUROPÉENNE EUROPÄISCHE NORM September 2001 ICS 29.035.1 English version Non-cellulosic papers for electrical purposes Part 2: Methods of test (IEC 6081 9-2:2001 ) Papiers non cellulosiques usages électriques Partie 2: Méthodes d'essai (CEI 6081 9-2:2001 ) Vliesstoffe auf Kunststofffaserbasis für elektrotechnische Zwecke Teil 2: Prüfverfahren (IEC 6081 9-2:2001 ) This European Standard was approved by CENELEC on 2001 -09-01 CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 050 Brussels © 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members Ref No EN 6081 9-2:2001 E Page EN 60819−2:2001 EN 91 806-2: 002 -2- Foreword The text of document 5C/1 83/FDIS, future edition of IEC 6081 9-2, prepared by SC 5C, Specifications, of IEC TC 5, Insulating materials, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 6081 9-2 on 2001 -09-01 The following dates were fixed: – latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2002-06-01 – latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2004-09-01 Annexes designated "normative" are part of the body of the standard In this standard, annex ZA is normative Annex ZA has been added by CENELEC Endorsement notice The text of the International Standard IEC 6081 9-2:2001 was approved by CENELEC as a European Standard without any modification 2002 21 January 22 ISB © © BSIyraunaJ 22 2002 Page EN 60819−2:2001 CONTENTS INTRODUCTION 4 10 11 12 13 Scope Normative references General notes on tests Thickness Grammage (mass per unit area, basic mass) Dissipation factor and permittivity Tensile strength and elongation Edge-tearing resistance Test apparatus Test pieces Procedure 8 Results Shrinkage due to heating in air Test apparatus Test pieces Procedure 9 Results Electric strength 1 Apparatus Test pieces Procedure 1 Results Conductivity of aqueous extract 1 Test apparatus 1 Reagents .1 1 Procedure 1 Percentage of moisture content Loss of mass on ignition (LOI) Figure – Edge-tearing stirrup Annex ZA (normative) Normative references to international publications with their corresponding European publications 2002 22 ISB © © BSIyraunaJ 22 January 2002 Page EN 60819−2:2001 I N T RO D U C T I O N Th i s I n t e rn a t i o n a l e l e c t ri c a l Th e S t a n d a rd is on e of a s e ri e s wh i ch deals wi t h n o n - ce l l u l o s i c p a p e rs fo r p u rp o s e s s e ri e s c o n s i s ts o f t h re e P a rt : D e fi n i t i o n s an d P a rt : M eth od s P a rt : S p e c i fi c a t i o n s p a rt s : g e n e l of tes t ( I E C re q u i re m e n ts (I EC 6081 9-1 ) 6081 9-2) fo r i n d i v i d u a l m a t e ri a l s (I EC 81 9-3) 2002 21 January 22 ISB © © BSIyraunaJ 22 2002 Page EN 60819−2:2001 NON-CELLULOSIC PAPERS FOR ELECTRICAL PURPOSES – Part 2: Methods of test Scope Th i s fo r p a rt of I EC e l e c t ri c a l IEC 6081 c o n ta i n s p u rp o s e s to th e m eet tes t th e m e th o d s to re q u i re m e n t s be used in p re s c r i b e d te s ti n g in th e n o n - ce l l u l o s i c s p e c i fi c a t i o n p a p e rs s h e e ts of 6081 9-3 Normative references Th e fo l l o w i n g n o rm a t i v e te x t, c o n s t i t u te p ro v i s i o n s m e n ts to , or a g re e m e n ts a p p l yi n g th e re fe re n c e s , an d I SO re v i s i o n s based m ost th e on o f, th i s re c e n t l a te s t m a i n ta i n d o cu m e n ts o f th i s p a rt an y p a rt of of re g i s t e rs of th e s e I EC e d i ti o n s e d i ti o n co n ta i n of I E C of th e a re o f c u rre n t l y v a l i d not I n te rn a t i o n a l a p p l y to d o cu m e n ts d ocu m en t t h ro u g h r e fe re n c e s , e n c o u g e d n o rm a t i v e n o rm a t i v e wh i c h , F o r d a te d p u b l i ca ti o n s 6081 th e p ro v i s i o n s 6081 r e fe re n c e su bseq u ent H o w e v e r, i n ve s ti g a te i n d i c a te d re fe rre d to th e b e l o w appl i es in th i s am en d- p a rt i e s poss i bi l i ty F or to of u n d a te d M e m b e rs of I EC S t a n d a rd s Electrical strength of insulating materials – Test methods – Part 1: Tests at power frequencies IEC 602 43-1 : 998, Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths IEC 60250: 969, Specification for non-cellulosic papers for electrical purposes – Part 3: Specifications for individual materials IEC 6081 9-3 ISO (all p a rts ) , Paper and board – Sampling to determine average quality 86: 994, Paper and board – Determination of thickness and apparent bulk density or apparent sheet density ISO 534 : 988, ISO 536 : 995, ISO 924 In (al l th i s s t a n d a rd , m ean t th i s fo r s pe ci m e n : te s t a th e p i ece : d e fi n i t i o n s th e fro m th e of in s e v e l used It on l y is an d of “sp eci m en ” paper of I SO q u a n ti t y wi th th e p l a ce s to be th a t to I SO p u b l i ca ti o n s u n d e rs t o o d all d e ta i l s th a t sh ou l d th i s a cco m p a n i e d s h o rt be ta ke n by d e s c ri p t i o n fro m th e a is I SO or b o a rd an d cu t “ te s t p i e c e ” to g i ve n as d e fi n e d d i m en si on s in fro m ISO 86 s h e e ts a re used d w n fro m fro m 86 of paper m e th o d s peci m en Ad a p t e d 2002 21 January 22 ISB © © BSIyraunaJ 22 2002 m ad e p u rp o s e s re c t a n g l e Ad a p t e d m ay be is m e th o d u n i ts a c c o rd a n c e N O TE th e i t s e l f s ta n d a rd , N O TE of i d e n t i fi c a t i o n s e l e c te d – re fe re n c e d e s c ri p t i o n p u b l i ca ti o n – Paper and board – Determination of tensile properties p a rt s ) , General notes on tests s h o rt In Paper and board – Determination of grammage or o f te s t b o a rd on I t m ay be wh i c h ta k e n th e fro m a d e t e rm i n a t i o n s p e ci m e n ; in is c a rri e d s om e ou t i n s ta n c e s in it i t s e l f of I SO 86 Page EN 60819−2:2001 3.1 U n l ess th a n p i ece s 3.2 in In P ri o r an th i s s p e c i fi e d , a t m o s p h e re of cu t th e ? (2 s peci m en ?C 2) and an d ? (50 co n d i ti o n 5) % r h th e tes t P e rfo rm p i eces th e fo r t e s ts n ot on th e l ess te s t a t m o s p h e re o f d i s p u te co n d i ti o n i n g , p i eces U n l ess fo r a o t h e rwi s e u se d ry th e al l speci m en s minimum s p e c i fi e d , fo l l o w i n g of h m ake te s ts p ro c e d u re at 70 ? at (23 on ?C to ?C an d ) t h re e a m o i s t u re (50 ? 2) co n ten t % below % C o n d i ti o n r h s peci m en s Thickness 4.1 d ial o t h e rw i s e in ca s e s to th e s e h M e a s u re th i ckn e s s m i c ro m e t e r t h a t on a appl i es single to th e te s t p i e ce tes t p i ece a in a c c o rd a n c e s t a ti c l oad wi th I SO e q u i va l e n t to 534 (1 00 usin g ? 0) a p re c i s i o n kP a 4.2 Exceptions to ISO 534 – M ake on e d e t e rm i n a t i o n – Take th e c e n tra l d e t e rm i n a t i o n s – U se – R e p o rt i n g th e va l u e sh al l m i l l i m e tre o f th e on be as as e ach th e o f th e re s u l t t h re e of co n d i ti o n ed th e th i ckn e s s te s t p i e ce s of a single s h e e t; th e o th e r two re p o rt e d th e u n i t o f th i ckn e s s s ta n d a rd d e vi a ti o n is o p ti o n a l Grammage (mass per unit area, basic mass) 5.1 M e a s u re P ri n ci p l e : M ass Th e th e g m m a g e a re a p e r u n i t a re a of is each in a cc o rd a n c e tes t p i e ce an d wi t h i ts I SO m ass 536 a re m e a s u re d on co n d i ti o n e d te s t p i e ce s ca l cu l a te d 5.2 Exceptions to ISO 536 – – I g n o re M ake cl a u s es on e and d e t e rm i n a t i o n on e ach o f th e t h re e co n d i ti o n ed tes t p i eces h a vi n g an a re a of n ot l ess th a n 0, 05 – D e t e rm i n e – Take 6.1 th e U se to va l u e an as a p p ro p r i a t e p e rm i t t i v i t y as U n l ess a l t e rn a t i n g a c c u c y o f , th e re s u l t ; % re p o r t t h e o th e r t wo va l u e s a p p a tu s Test at d e s c ri b e d l east t h re e in I EC 60250 s p eci m en s fo r U n l ess m e a s u re m e n t o t h e rwi s e of d i s s i p a ti o n s p e c i fi e d , d i ti o n per o t h e rw i s e vo l ta g e a p p ro x i m a te l y , m ass c e n t l an y an d te s t p i e c e s 6.3 Dissipation factor and permittivity fa c t o r 6.2 th e m R e p o rt t h e at s p e c i fi e d , a te s t fre q u e n c y at ro o m b e twe e n 48 t e m p e t u re Hz and 62 in Hz a c c o rd a n c e wh i c h wi th p ro v i d e s a using s tre s s of M V /m m ed i an va l u e s fo r d i s s i p a t i o n fa c t o r a n d p e rm i t t i v i t y 2002 21 January 22 ISB © © BSIyraunaJ 22 2002 Page EN 60819−2:2001 Tensile strength and elongation 7.1 D e t e rm i n e s p e c i fi e d in P ri n ci p l e : Test p ri n c i p a l e xp o s e d th e te n s i l e s t re n g t h s p e c i fi c s h e e ts p i e ce s d i re c ti o n s to ten s i l e of and e l o n g a ti o n of I EC a p p ro x i m a t e l y th e fo rc e s p a p e r, a re in a cc o rd a n c e mm wi d e d i ti o n e d , s u ffi c i e n t t o wi th I SO 924 u n l ess o t h e rwi s e 60 81 9-3 cau s e th e an d 250 cl a m p e d te s t p i e ce in to mm a lon g, cu t in te n s i o n - te s t i n g e a ch of m a ch i n e , th e an d b re a k 7.2 Exceptions to ISO 924 – Test th e – nine te s t p a p e r Test nine p a p e r te s t Th es e – Take – R e p o rt t h e – A l t e r n a t i v e l y, th e th e p i e ce s Th ese cu t re s u l ts p i e ce s cu t re s u l t s c e n t l a re va l u e th e th a t MD so th e re s u l t s th e lon g te n s i l e th a t CD th e te n s i l e of th e h i g h est an d n e a re s t 0 so a re nine d i m en s i on is p a l l e l to th e m a ch i n e d i re c t i o n of s t re n g t h lon g d i m en si on is p a l l e l to th e c ro s s d i re c t i o n o f th e s t re n g t h d e t e rm i n a t i o n s as th e re s u l t fo r e a c h d i re c t i o n l o we s t v a l u e s m ay be e x p re s s e d as b re a k i n g s t re n g t h in m e t re s ro u n d e d o ff to m Edge-tearing resistance 8.1 Test apparatus Th e te s t a p p a tu s c o n s i s ts e d g e - t e a r s t i rru p of – an fr a m e – a V- n o tc h e d p l a te wi th a th i ckn e s s of (1 , 25 – a V- n o tc h e d p l a te wi th a th i ckn e s s of (2, 50 – a te n s i o n - te s t i n g m a ch i n e (see in fi g u r e ); a cc o rd a n c e ? ? 0, 05) mm, fo r u s e wi th th e s t i rru p fra m e ; 0, 05) mm, fo r u s e wi th th e s t i rru p fra m e ; wi t h cl au se and at 8.2 Test pieces Cu t l on g nine Cu t n i n e to tes t pi eces d i re c t i o n th e is a d d i ti o n a l cro s s E xam i n e p a l l e l te s t d i re c t i o n th e ed g es C o n d i ti o n an d 2002 21 January 22 ISB © © BSIyraunaJ 22 2002 te s t a l l to to th e 25 e a ch due te s t to mm wi d e m ach i n e p i e ce s o f th e of n i c k o r o t h e r d e fe c t s mm h a vi n g p a p e r te s t th e th e Label pi ece c u tt i n g p i e ce s d i re c t i o n in sam e th e s e CD and wo u l d a cc o rd a n c e 250 p a p e r d im ensi ons as D i s c a rd th a t l east o f th e long Label bu t wi th in s u ch th e s e th e as long a MD wa y th a t th e te s t p i e c e s d i re c t i o n p a l l e l te s t p i e c e s re p l a c e i n fl u e n c e wi th mm an y th e tes t p i e ces wh i c h co n ta i n a t e s t re s u l t s Page EN 60819−2:2001 8.3 Procedu re If p a p e rs p l a te to h a vi n g th e a ed g e th i ckn e s s te a r of s t i rru p 0, 75 mm fra m e If or less th i cke r a re to p a p e rs be a re te s te d , to be a tta ch te s te d , th e , 25 a t ta c h mm th e th i c k 2, 50 mm th i c k p l a t e F a s te n th e m a ch i n e – – ta n g th e v e rt i c a l u pper an d th e si d es N O TE P l ace th e fa s t e n s l a ck i n th e s t i rr u p line of th e l o we r c l a m p s th e V- n o tc h fra m e z e ro m ay poi n t fra m e in s t i rru p of th e a re te s t be o f th e cl am p th e th e l o we r coi n ci d es t e s ti n g cl am p wi th m a ch i n e , s ym m e t r i c a l l y of fa s t e n e d m a ch i n e th e V- n o tc h e d (see n ote) of th e te n s i o n - te s t i n g th e line co n n e cti n g th e m i d - p o i n ts to t h ro u g h of an d l oca te d re l a t i ve th e line th e mid- m a ch i n e t h ro u g h u pper cl am p s t ri p Take th e u pper co m p e n s a te s u ch cl a m p , fo r t h e th a t th e if d e s i re d m ass o f th e l o we r Th i s a r n g e m e n t s t i rru p ed g e of wi l l re q u i re re - a s s e m b l y th e u pper cl am p is abou t p l a te in th e to to p i ece th e m th e th e cl am ps l o we r a b o ve T h re a d an d of s t i rru p o f th e th e mm c e n t re of th e Th e c a l i b t i o n of th a t th e p o i n ts 90 th i n so c a re th e n o t to s t i rru p , Th i s u n d er th e p ro c e d u re p l a te , wi l l a p p l y a n y t e a ri n g an d re s u l t fo rc e s to b ri n g in th e th e th e two en ds e l i m i n a ti o n te s t pi ece to g e t h e r of m ost d u ri n g th i s o f th e s te p of p ro c e d u re M ake th e m i n i m i ze p ro d u c e At t h e a p p l i ca ti o n a b n o rm a l t e a ri n g ti m e of th e s tra i n s wi th i n s o f o b s e rv a t i o n fi rs t due to i n c re m e n t s to i n e rt i a of l oad e ffe c t s to th e Ad j u s t te s t th e p i e ce appl ied ve ry l oad s l o wl y to a so t e as th a t to wi l l s of th e fi rs t t e a ri n g in th e s tri p , re c o rd th e load in n e wt o n s (N ) 8.4 Results R e p o rt th e th i c k n e s s n e wt o n c e n t l of th e va l u e s te s t fo r p i e ce s each and of th e th e t e hi g h est an d l o we s t Shrinkage due to heating in air 9.1 Test apparatus – te s t a p p a tu s an a Th e of th e unit fo r p a p e r I n cl u d e e d g e - te a ri n g th e wi d th re s i s ta n c e an d is th e an y set va l u e s – d i re c ti o n s (N ) R e p o rt t h e Th e two of l oad i n g c o n s i s ts i n s tru m e n t c a p a b l e of o f m e a s u ri n g t e m p e t u re - c o n t ro l l e d t e m p e r a t u re b e twe e n 30 o ve n ?C th a t and 250 mm d i s ta n ce s m a i n ta i n s 300 r to wi th i n wi t h i n th e ? 0, o ve n mm; wi th i n ? ?C at ?C 9.2 Test pieces C u t th re e One M a rk 01 re c t a n g u l a r t e s t p i e c e s , ed g e each sh al l be p a l l e l te s t p i e ce so as to to th e e a ch h a vi n g m ach i n e i d e n t i fy t h e a d im en si on d i re c t i o n m a ch i n e of th e g re a t e r t h a n 245 mm on an y edge p a p e r d i re c t i o n 2002 21 January 22 ISB © © BSIyraunaJ 22 2002 Page EN 60819−2:2001 9.3 Procedu re a) B e fo re p l ace m e a s u ri n g th em u pon co n d i ti o n i n g b) M e a s u re a n y d i m en s i on , a s m o o th fl a t co n d i ti o n s u rfa c e al l te s t l oca te d p i e ce s in a in ro o m a cco rd a n c e or ch am ber wi th 3.1 an d m a i n ta i n e d th e n at th e a t m o s p h e re an d re c o rd th e d im en si on s of e ach te s t p i e ce in th e m a ch i n e an d c ro s s - d i re c t i o n s c) S et th e o ve n to th e t e m p e r a t u re s p e c i fi e d in IEC 60 81 9-3 wa y th a t and all ow it to co m e to t h e rm a l e q u i l i b ri u m d) P l a ce th e ch a m b e r d u ri n g e) th e Cou n t f) Aft e r a n g) Aft e r a pi eces a light in th e we i g h t o ve n in s u ch a tt a c h e d to a th e b o tto m ea ch of is e a ch suspend ed tes t pi ece to v e rt i c a l l y m i n i m i ze in th e c u rl i n g h e a t e x p o s u re th e t h e rm a l beg in n i ng of e x p o s u re ti m e fro m th e ti m e at and l e t th e wh i c h th e o ve n h as re a c h e d e q u i l i b ri u m e x p o s u re ti m e d i re c t i o n h) te s t wi th of on C a l c u l a te h e a ch in ti m e in ? of (40 th e m in, d e s s i c a t o r, tes t p i ece p e r c e n t th e ) in re m o v e re p e a t a c c o rd a n c e s h ri n k a g e MD th e wi t h ? pi e ce s d e t e rm i n a t i o n of co ol th e in a d e s s i c a t o r d i m en si on s in e a ch fo r e a c h (M D d i m e n s i on b e fore h e a ti n g ) tes t te s t p i e ce as fo l l o ws : (M D d i m e n s i on a fte r h e a ti n g ) ? 00 (M D d i m e n s i on b e fore h e a ti n g ) i) C a l c u l a te in d i m en si on s per cen t fo r t h e MD th e s h ri n k a g e d im en si on s CD fo r e ach te s t p i e ce by s u b s ti tu ti n g th e CD of 3h ) 9.4 Results Take th e va l u e s c e n tra l va l u e o f p e rc e n t a g e I d e n t i fy t h e o f th e t h re e s h ri n k a g e e x p o s u re val u es fo r e a c h t e m p e t u r e in e a ch d i re c t i o n as th e re s u l t R e p o rt th e o th e r t wo d i re c t i o n used Electric strength 0.1 Apparatu s M e a s u re Th e th e e l e ctri c p r e fe rre d ca s e s w h e re p e rm i s s i b l e U se th e to s tre n g th e l e c t ro d e s te s t use e l e ctro d e s th e th a t usi n g a re th e p i e ce s a re mm th e /7 h a ve a p p a tu s mm d i m en s i on s to o d i a m e t e r e l e c t ro d e s p a l l e l an d fre e in a cco rd a n ce e l e c t ro d e s fro m sm al l of p i ts wi th d e s cri b e d fo r in use of I EC cl a u s e by of I EC of I EC th es e 60243-1 60243-1 e l e c t ro d e s it In is 60 24 3-1 o r o t h e r i m p e rfe c t i o n s 0.2 Test pieces Co n d i ti o n Ar e a al l te s t p i e ce s d im ensi on s of each in a cco rd a n c e te s t p i e ce wi th shal l be p ri o r t o l a rg e te s ti n g en oug h to p re v e n t fl a s h o v e r a ro u n d th e tes t pi ece F ro m e a ch of n i n e speci m en b re a k d o w n 2002 21 January 22 ISB © © BSIyraunaJ 22 2002 p r e p a re vo l ta g e on e or m o re te s t p i e ce s h a vi n g s u ffi c i e n t a re a to o b ta i n a to ta l re a d i n g s 11 Page 10 EN 60819−2:2001 0.3 Procedure M e a s u re M ake an d nine fo r e a c h re c o rd th e b re a k d o w n th i c k n e s s te s ts in o f e a ch air in tes t pi ece a c c o rd a n c e in wi th a c c o rd a n c e of I EC wi th cl au s e 24 3-1 R e c o rd th e vo l ta g e b re a k d o w n F o r c ri t e r i o n o f b re a k d o wn , use cl a u s e of I EC 60 43-1 0.4 Results C a l c u l a te th e m e a s u re d R e p o rt i n s t re n g t h a c c o rd a n c e R e p o rt t h e R e p o rt e l e c t ri c fo r e a ch te s t pi ece by d i vi d i n g th e b re a k d o w n vo l ta g e by th e th i ckn e s s wi th m a xi m u m , th e e l e c tri c cl a u se ce n tra l s t re n g t h and in of I EC 60 24 3-1 l o we s t va l u e s k i l o vo l ts per m i l l i m e tre ( k V/m m ) or as m e g a v o l ts per m e t re ( M V /m ) R e p o rt t h e d i m en si on s of th e e l e c t ro d e s used 1 Conductivity of aqueous extract 1 Test apparatus Th e te s t a p p a tu s c o n s i s ts – a co n d u cti vi ty ce l l – a m e a s u ri n g wi th an – fl a s k s , re fl u x a i n s t ru m e n t a ccu c y re s i s t a n c e – wi th of m ay be g l ass, of k n o wn ca p a b l e % in m e a s u re d aci d - c o n d e n s e r, an d ce l l c o n s ta n t; of th e d e t e rm i n i n g fre q u e n c y wi th th e sam e a l k a l i - re s i s t a n t , g l ass, aci d - and 250 co n d u cta n ce n g e 50 Hz to to a minimum 000 H z va l u e of A l t e rn a t i v e l y, ? S th e a c c u c y; ml c a p a c i t y, a l k a l i - re s i s t a n t , fo r wi d e use m ou th , wi th i ca l ; th e wi d e - m o u th fl a s k s a b o ve ; – a n a l yt i c a l b al a n ce capa b l e o f we i g h i n g to ? 0, 05 g 1 Reagents D i s ti l l e d 21 o r d e i o n i ze d – vo l u m e – pH – to ta l wa te r t h a t m e e ts r e s i s t i v i t y g re a t e r t h a n b e twe e n m ass 6,20 an d fra c t i o n 0, 01 al l M o f th e ? fo l l o w i n g r e q u i re m e n t s at 25 ?C: m; 7, 50 ; of sol i d s l ess th a n –6 2002 21 January 22 ISB © © BSIyraunaJ 22 2002 Page 11 EN 60819−2:2001 1 Procedu re N O TE It is e s s e n ti a l m a n n e r th a t m ay e xi s t th e y wi t h i n a re a a) M ake al l b) M ake on e c) C o n fi rm th e F ro m a g lass fl a s k f) S to pp er ro o m g) If wi t h an d h an d s re a g e n t s o r e xp o s u re be to han dl ed an d co n t a m i n a ti n g s t o re d in s u ch a t m o s p h e re s a th a t th e m a te ri a l as fl a s k wh i c h fo r use wi l l in re c e i v e d e a ch h ol d th i s o f t h re e th e e x t c t i o n s e x t c t m e th o d Th e s o l u ti o n d u ri n g p ro c e d u r e fo r th e th e c o n d u cta n c e d e t e rm i n a t i o n of th a t of re a g e n t wi l l be w a t e r, used Atta c h to th e pour h ol d fl a s k to p re v e n t a p p ro x i m a t e l y aq u eou s 25 e x t c t ml of s o l u ti o n re a g e n t d u ri n g th e wa te r i n to th e m e a s u re m e n t re fl u x c o n d e n s e r w a t e r fo r a p p r o x i m a t e l y th e th e c a rb o n d i o xi d e a b s o rp ti o n and al l ow th e c o n te n ts to coo l to t e m p e t u re th e co n d u cti vi ty fl a s k th a t a p p a t u s , fo l l o ws co n d u cta n ce th i s pi eces , m e a s u re m e n t o n s u i ta b l e re s e r v o i r B oi l on g l ass is te s t e i th e r b y co n t a ct l a b o t o ry co n d u cta n ce th a t e) s p e ci m e n s , d e t e rm i n a t i o n s c o n fi rm a t i o n o f th e al l co n ta m i n a te d ch e m i ca l m e a s u re m e n t d) th a t n ot If th e c o n fo rm co n te n ts h) F ro m a i) Weigh to and ca l cu l a ti o n e xce e d s co n d u cti vi ty th e a b o ve use th i s ? 200 is S /m , bel ow c ri t e ri o n as th e re p e a t ? 200 S /m , Re c o rd th e p ro c e d u re th e th e co n d u cta n ce fl a s k is a cce p ta b l e va l u e on th e s u i ta b l e fo r sam e fo r u se co n d u cta n ce th e bl an k fl a s k or Use va l u e a n o th e r on l y of fl a s k s th e d e t e rm i n a t i o n fl a s k in th e of 1 20 g (5, s peci m en , ? 0, 5) g cu t p i e ce s of th e of abou t paper and pl ace ? mm it in a mm wi d e - m o u th fl a s k wh i c h is fi t t e d wi th a re fl u x c o n d e n s e r j) Ad d k) H e a t th e l) 00 Aft e r ml o f re a g e n t fl a s k g en tl e to wa t e r boil i n g boi l in g fo r an d boi l g e n t l y a p p ro x i m a te l y 60 m in, re m o v e th e fl a s k and i ts c o n te n ts fro m th e h e a t m) Re m o ve th e d i oxi d e fro m n) Cool ro o m o) D eca n t to a p) q) an d s top p er th e fl a s k to p re v e n t a b s o rp t i o n of ca rb o n m i l l i l i t re s cel l as th e of th e e x t c t e x t c t fl o w s so i n to th a t th a t th e fl a s k liquid u pon ri n s e s wh i c h th e th e e l e c t ro d e s bl ank of th e d e t e rm i n a t i o n m ad e Ri n s e th e Re p e a t e x t c t 1 d en s er a i r t e m p e t u re fe w co n d u cti vi t y wa s re fl u x th e fl a s k th i s i n to wi t h a ri n s i n g th e C a l cu l a te vo l u m e p ro c e s s fl a s k th e sm all an d of th e twi ce ; m e a s u re th e n th e co n d u cti vi ty o f th e e x t c t , as th e n q u i ckl y c o n d u cta n ce e x t c t s o l u t i o n ?= K G – G ( d i s c a rd as possi bl e at (23 as th e ? 0, 5) liquid t n s fe r th e re m a i n i n g ?C fo l l o ws : ) wh e re ? K G G is th e c o n d u c t i v i t y o f e x t c t s o l u t i o n is th e ce l l is th e co n d u cta n ce o f e x t c t s o l u t i o n is th e co n d u cta n ce of bl an k co n s ta n t R e p o rt t h e m ed i an R e p o rt t h e h i g h est an d 2002 21 January 22 ISB © © BSIyraunaJ 22 2002 in va l u e u n i ts as of m th e in –1 in m i c ro s i e m e n s p e r m e t re ( ? S /m ) ; ; in m i c ro s i e m e n s m i cro s i e m e n s ( ? ( ? S); S) re s u l t l o w e s t c o n d u c t i v i t y 31 Page 12 EN 60819−2:2001 Percentage of moisture content 2.1 F ro m e xce s s P l ace of tes t g W ei g h pi eces a ft e r d r yi n g 2.2 u n c o n d i ti o n e d to a in a on speci m en s, a b a l a n ce l a b o t o ry co n s ta n t m a s s C a l c u l a te th e ta ke te s t h a vi n g o ve n of co n ve n i e n t a c c u c y m a i n ta i n e d Test pi eces p e rc e n t m o i s t u re an p i e ce s shall at be of (1 05 ta ke n ? ? 0, 05 fro m % ?C 3) at d i m en si on s R e c o rd th e D e t e rm i n e l e a s t two wi th m ass i n i ti a l th e in m ass fi n a l m ass s peci m en s co n te n t: (i n i ti a l m a s s ? fi n a l m a s s ) ? 00 i n i ti a l m a s s 2.3 R e p o rt t h e a v e g e va l u e fro m all of th e te s t p i e ce s Loss of mass on ignition (LOI) Al s o an kn o wn as ash e x t re m e l y h i g h 3.1 C o n d i ti o n Weig h te s t a p i eces t a re d co o l on 3.2 m ass ro o m s p e ci m e n s b a l a n ce P l ace c ru c i b l e to c o n t e n t, if th i s te s t p r o c e d u re d e te rm i n e s th e l oss of m ass a ft e r e xp o s u re to t e m p e t u re h a vi n g tes t a cco rd i n g an pi e ces n e c e s s a ry ) to a c c u c y in a an d ? of l a b o t o r y Re m o ve te s t ta ke 0, 05 % o ve n p i eces te s t pi eces R e c o rd th e m a i n ta i n e d fro m th e wi th i n i ti a l at (650 o ve n , m ass in m ass ? p l a ce 5) in e xce s s fo r ?C a at fo r of l east h g t h re e (U se d e s s i c a t o r, a an d t e m p e r a t u re Re m o ve th e C a l cu l a te th e te s t LOI pi ece as a fro m th e d e s s i ca to r and we i g h i m m e d i a t e l y R e c o rd as fi n a l p e rc e n t a g e : (i n i ti a l m a s s ? fi n a l m a s s ) ? 00 i n i ti a l m a s s 3.3 41 R e p o rt t h e a v e g e va l u e of al l te s t p i e ce s 2002 21 January 22 ISB © © BSIyraunaJ 22 2002 Page 13 EN 60819−2:2001 IEC 929/01 F i g u re – E d g e -te a ri n g s ti rru p 2002 21 January 22 ISB © © BSIyraunaJ 22 2002 51 Page 14 EN 60819−2:2001 -3- EN 91 806-2: 002 Annex ZA (normative) Normative references to international publications with their corresponding European publications This European Standard incorporates by dated or undated reference, provisions from other publications These normative references are cited at the appropriate places in the text and the publications are listed hereafter For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision For undated references the latest edition of the publication referred to applies (including amendments) NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies 61 Publication IEC 60243-1 Year 998 Title Electrical strength of insulating materials - Test methods Part : Tests at power frequencies EN/HD EN 60243-1 Year 998 IEC 60250 969 Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths - - IEC 6081 9-3-2 2001 Non-cellulosic papers for electrical purposes Part 3: Specifications for individual materials Sheet 2: Hybrid inorganicorganic paper EN 6081 9-3-2 2001 ISO 86 994 Paper and board Sampling to determine average quality EN ISO 86 996 ISO 534 988 Paper and board - Determination of thickness and apparent bulk density or apparent sheet density - - ISO 536 995 Paper and board Determination of grammage - - ISO 924 Series Paper and board - Determination of tensile properties - - 2002 21 January 22 ISB © © BSIyraunaJ 22 2002 blank BS EN 60819-2:2002 IEC 60819-2:2001 BSI — British Standards Institution BSI is the independent national body responsible for preparing British Standards It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter Revisions British Standards are updated by amendment or revision Users of British Standards should make sure that they possess the latest amendments or editions It is the constant aim of BSI to improve the quality of our products and services We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover Tel: +44 (0)20 8996 9000 Fax: +44 (0)20 8996 7400 BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001 Email: orders@bsi-global.com Standards are also available from the BSI website at http://www.bsi-global.com In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service Various BSI electronic information services are also available which give details on all its products and services Contact the Information Centre Tel: +44 (0)20 8996 7111 Fax: +44 (0)20 8996 7048 Email: info@bsi-global.com Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards For details of these and other benefits contact Membership Administration Tel: +44 (0)20 8996 7002 Fax: +44 (0)20 8996 7001 Email: membership@bsi-global.com Information regarding online access to British Standards via British Standards Online can be found at http://www.bsi-global.com/bsonline Further information about BSI is available on the BSI website at http://www.bsi-global.com Copyright BSI 389 Chiswick High Road London W4 4AL Copyright subsists in all BSI publications BSI also holds the copyright, in the UK, of the publications of the international standardization bodies Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, photocopying, recording or otherwise – without prior written permission from BSI This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained Details and advice can be obtained from the Copyright & Licensing Manager Tel: +44 (0)20 8996 7070 Fax: +44 (0)20 8996 7553 Email: copyright@bsi-global.com